CN110542843B - Casting type bubble discharge model and manufacturing method thereof - Google Patents
Casting type bubble discharge model and manufacturing method thereof Download PDFInfo
- Publication number
- CN110542843B CN110542843B CN201910935558.1A CN201910935558A CN110542843B CN 110542843 B CN110542843 B CN 110542843B CN 201910935558 A CN201910935558 A CN 201910935558A CN 110542843 B CN110542843 B CN 110542843B
- Authority
- CN
- China
- Prior art keywords
- polar plate
- casting mold
- insulating
- casting
- epoxy resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005266 casting Methods 0.000 title claims abstract description 92
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000003822 epoxy resin Substances 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 38
- 229920000647 polyepoxide Polymers 0.000 claims description 38
- 239000011159 matrix material Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229920010015 ABS 3D Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005187 foaming Methods 0.000 description 14
- 238000009413 insulation Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a casting type bubble discharge model which comprises a box-shaped casting mold, a polar plate, an insulating substrate and bubble holes, wherein the insulating substrate and the bubble holes are filled in an inner cavity of the casting mold, the polar plate comprises a first polar plate and a second polar plate, the lower end of the first polar plate is clamped between the inner side wall of the left end of the casting mold and the insulating substrate, the lower end of the second polar plate is clamped between the inner side wall of the right end of the casting mold and the insulating substrate, and the bubble holes are formed in the insulating substrate. The invention also discloses a manufacturing method of the casting type bubble discharge model, which ensures that bubbles are stable and not dispersed, can truly simulate the effect of actual bubble discharge in the casting process, and has low production cost.
Description
Technical Field
The invention relates to the technical field of bubble discharge simulation, in particular to a casting type bubble discharge model and a manufacturing method thereof.
Background
Partial discharge refers to discharge which occurs between electrodes but does not penetrate the electrodes, and is a phenomenon that repeated breakdown and extinction occur under the action of high electric field intensity due to weak points in the insulation of equipment or defects caused in the production process. Partial discharge is an important cause of insulation faults of power transformation equipment, partial discharge is usually generated when equipment insulation is abnormal, partial discharge detection is an important means for detecting the power transformation equipment, the partial discharge is an important means for guaranteeing safe, reliable and stable operation of the power equipment, and bubble partial discharge is a common type in the insulation faults of the power transformation equipment, the type of discharge has smaller discharge quantity compared with other discharge types, and is difficult to find in field detection, so that the research of a bubble discharge model is necessary for grasping the characteristics of bubble discharge and developing bubble detection training.
At present, a discharge model for simulating bubble discharge is mainly divided into a bubble discharge model in an insulating part and a bubble discharge model in oil, wherein the manufacturing of the bubble discharge model in the insulating part generally presses a processed double-layer insulating material, but the method has the advantage of convenient operation, and bubbles are easy to disappear or disperse in the pressing process of the double-layer insulating material, so that the model discharge phenomenon manufactured by the method has a larger characteristic difference with actual bubble discharge; the other method is to adopt an integrally formed laser inscription method, so that the bubble is standard, but the manufacturing cost is higher.
In summary, a casting type bubble discharge model with convenient use, difficult dispersion of bubbles and low production cost and a manufacturing method thereof are needed to be disclosed.
Disclosure of Invention
In order to overcome the defect that bubbles of the existing bubble discharge model are easy to disperse and unstable, so that the simulated discharge phenomenon is greatly different from the actual bubble discharge characteristics, and the bubble discharge model capable of simulating the actual bubble discharge reality has the defect of high manufacturing cost, the invention provides a casting type bubble discharge model and a manufacturing method thereof, which ensure that bubbles are stable and not dispersed, can truly simulate the actual bubble discharge effect in the casting process, and has low production cost.
The present invention aims to solve the above technical problems at least to some extent.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
the utility model provides a pouring type bubble discharge model, includes box form casting die, polar plate, fills insulating matrix and the bubble hole that sets up in casting die inner chamber, the polar plate includes first polar plate and second polar plate, the lower extreme clamp of first polar plate is located between casting die's the left end inside wall and the insulating matrix, the lower extreme clamp of second polar plate is located between casting die's the right-hand member inside wall and the insulating matrix, the bubble hole sets up the inside in.
Preferably, the bubble hole is arranged at the center of the insulating matrix, the insulating matrix is initially a liquid foamless insulating epoxy resin material, the liquid foamless insulating epoxy resin material is injected into 1/2 of the vertical height of the inner cavity of the casting mold, after the liquid foamless insulating epoxy resin is dried and fixed, the center of the upper surface of the dried liquid foamless insulating epoxy resin is taken as a sphere center, a 3D engraving machine is utilized to engrave the lower hemispherical hole of the bubble hole, a blower is utilized to blow out the engraved redundant material, then the liquid foamless insulating epoxy resin is continuously injected into the inner cavity of the casting mold to form the insulating matrix, meanwhile, the surface tension of the liquid foamless insulating epoxy resin is utilized to form an upper hemispherical hole matched with the lower hemispherical hole, and the distance between the upper surface of the insulating matrix and the upper surface of the casting mold is 1/5 of the height of the inner cavity of the casting mold. Because the epoxy resin in the liquid state has surface tension, under the condition that the diameter of the lower hemispherical hole is smaller, the liquid non-foaming insulating epoxy resin is poured again to form an upper hemispherical hole matched with the lower hemispherical hole, so that hollow spherical air holes in the center of the inside of the insulating matrix are formed together, but the hollow spherical air holes cannot be blocked due to reinjection of the liquid non-foaming insulating epoxy resin.
Preferably, the bubble holes are hollow spheres, and the diameters of the bubble holes are 1-2mm.
Preferably, the electrode plate is a copper electrode plate.
Preferably, the interelectrode distance between the first polar plate and the second polar plate is 9-13mm.
When the diameter of the air bubble hole is 1-2mm and the inter-electrode distance between the first polar plate and the second polar plate is 9-13mm, the casting type air bubble discharge model provided by the invention can generate an air bubble discharge signal which is similar to the actual air bubble discharge phenomenon in the voltage range of 4-10kV when being applied to partial discharge simulation.
Preferably, the first polar plate and the second polar plate are both L-shaped.
Preferably, the insulating matrix is transparent, the distance between the upper surface of the insulating matrix and the upper surface of the casting mold is 1/5 of the height of the inner cavity of the casting mold, and the insulating matrix is transparent, so that the casting type bubble discharge model can be conveniently inspected after the manufacturing is completed.
Preferably, the box-shaped casting mold is made of ABS 3D printing materials, insulation is guaranteed, and manufacturing cost is low.
The invention also provides a manufacturing method of the casting type bubble discharge model, which is used for manufacturing the casting type bubble discharge model and comprises the following steps:
s1, printing an ABS insulating material out of a box-shaped casting mold by using a 3D printer;
s2: placing the lower end of the first polar plate into the inner cavity of the casting mold along the left end inner side wall of the casting mold, and placing the lower end of the second polar plate into the inner cavity of the casting mold along the right end inner side wall of the casting mold;
s3: injecting liquid non-foam insulating epoxy resin into the inner cavity of the casting mold, and stopping injection when the liquid non-foam insulating epoxy resin is injected into 1/2 of the vertical height of the inner cavity of the casting mold to form the lower half part of the insulating matrix;
s4: after the injected liquid foamless insulating epoxy resin is dried and fixed, carving a lower hemispherical hole of an air hole by using a 3D carving machine by taking the center of the upper surface of the dried liquid foamless insulating epoxy resin as a spherical center;
s5: and blowing off the surplus waste materials caused by carving by using a blower, continuously injecting liquid foamless insulating epoxy resin into the inner cavity of the casting mold to form the upper half part of the insulating matrix, forming the insulating matrix by the lower half part and the upper half part together, and forming an upper hemispherical hole matched with the lower hemispherical hole by using the surface tension of the liquid foamless insulating epoxy resin.
Preferably, the diameter of the lower hemispherical hole in the step S4 is 1mm; and S5, continuously injecting the liquid foamless insulating epoxy resin to the position, which is 1/5 of the height of the inner cavity of the casting mold, of the upper surface of the casting mold, stopping, wherein the lower end of the first polar plate and the lower end of the second polar plate are respectively clamped between the insulating substrate and the inner side wall of the casting mold, the lower end of the first polar plate is clamped between the inner side wall of the left end of the casting mold and the insulating substrate, and the lower end of the second polar plate is clamped between the inner side wall of the right end of the casting mold and the insulating substrate.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
(1) According to the casting type bubble discharge model provided by the invention, the bubble holes are formed in the insulating matrix, the peripheries of the bubble holes are coated by the insulating matrix, bubbles are stable and are not easy to disperse, the defect that the discharge phenomenon of the existing bubble discharge model is very different from the actual bubble discharge characteristic is overcome, and the actual bubble discharge effect in the casting process can be truly simulated.
(2) The manufacturing method of the pouring type bubble discharge model provided by the invention only manufactures the model through a 3D printing technology, does not need laser engraving, and has low production cost.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a casting type bubble discharge model according to the present invention.
Fig. 2 is a schematic flow chart of a method for manufacturing a casting type bubble discharge model according to the present invention.
Fig. 3 is a schematic cross-sectional structure of the model formed in step S3 in the manufacturing method according to the present invention.
Fig. 4 is a schematic cross-sectional structure of the model formed in step S4 in the manufacturing method according to the present invention.
Fig. 5 is a schematic cross-sectional view of a bubble discharge model finally formed by the manufacturing method according to the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions;
it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Example 1
Fig. 1 shows an overall structure schematic diagram of a casting type bubble discharge model, referring to fig. 1, a casting type bubble discharge model includes a box-shaped casting mold 1, a polar plate 2, an insulating substrate 3 and a bubble hole 4 filled in an inner cavity of the casting mold 1, in this embodiment, the polar plate 2 is a copper polar plate, the polar plate 2 includes a first polar plate 201 and a second polar plate 202, a lower end of the first polar plate 201 is clamped between a left end inner sidewall of the casting mold 1 and the insulating substrate 3, a lower end of the second polar plate 201 is clamped between a right end inner sidewall of the casting mold 1 and the insulating substrate 3, the first polar plate 201 and the second polar plate 201 are all L-shaped, and the bubble hole 4 is arranged in the interior of the 3.
Referring to fig. 1, a bubble hole 4 is formed in the center of an insulating substrate 3, the insulating substrate 3 is initially a liquid non-foaming insulating epoxy resin material, the liquid non-foaming insulating epoxy resin material is injected into 1/2 of the vertical height of the inner cavity of a casting mold 1, after the liquid non-foaming insulating epoxy resin is dried and fixed, the center of the upper surface of the dried liquid non-foaming insulating epoxy resin is taken as a sphere center, a 3D carving machine is utilized to carve a lower hemispherical hole of the bubble hole 4, a blower is utilized to blow out the residual carved material, then the liquid non-foaming insulating epoxy resin is continuously injected into the inner cavity of the casting mold 1 to form the insulating substrate 3, meanwhile, the surface tension of the liquid non-foaming insulating epoxy resin is utilized to form an upper hemispherical hole 402 matched with the lower hemispherical hole 401, and the distance between the upper surface of the insulating substrate 3 and the upper surface of the casting mold 1 is 1/5 of the inner cavity height of the casting mold 1. The diameter of the air bubble hole 4 is 1-2mm, the interelectrode distance between the first polar plate 201 and the second polar plate 202 is 9-13mm, and when the diameter of the air bubble hole is 1-2mm and the interelectrode distance between the first polar plate and the second polar plate is 9-13mm, the casting type air bubble discharge model provided by the invention can generate an air bubble discharge signal which is similar to the typical air bubble discharge phenomenon in the voltage range of 4-10kV when being applied to partial discharge simulation. The inter-electrode distance between the first electrode plate 201 and the second electrode plate 202 may take two end points, and the diameter of the air bubble hole 4 may take two end points, in this embodiment, the diameter of the air bubble hole 4 is 1mm, and the inter-electrode distance between the first electrode plate 201 and the second electrode plate 202 is 10mm.
Since the epoxy resin in the liquid state has a surface tension, in this embodiment, the diameter of the lower hemispherical hole 401 is 1mm, the diameter of the lower hemispherical hole is smaller, and the upper hemispherical hole 402 matched with the lower hemispherical hole 401 can be formed by pouring the liquid non-foaming type insulating epoxy resin again, so that the hollow spherical air bubbles 4 at the inner center of the insulating substrate 3 are formed together, but are not blocked by reinjection of the liquid non-foaming type insulating epoxy resin.
The insulating matrix 3 is transparent, the distance between the upper surface and the upper surface of the casting mold 1 is 1/5 of the height of the inner cavity of the casting mold 1, and the insulating matrix 3 is transparent, so that the casting type bubble discharge model is convenient to check after the manufacturing is finished. The box-shaped casting mold 1 is made of ABS 3D printing materials, insulation is guaranteed, and manufacturing cost is low.
The invention also provides a flow diagram of the casting type bubble discharge model manufacturing method, as shown in fig. 3, the method comprises the following steps:
s1, printing an ABS insulating material out of a box-shaped casting mold 1 by using a 3D printer;
s2: placing the lower end of the first polar plate 201 into the inner cavity of the casting mold 1 along the inner side wall at the left end of the casting mold 1, and placing the lower end of the second polar plate 202 into the inner cavity of the casting mold 1 along the inner side wall at the right end of the casting mold 1;
s3: injecting liquid non-foam insulating epoxy resin into the inner cavity of the casting mold 1, stopping injection when the injection is performed to 1/2 of the vertical height of the inner cavity of the casting mold 1 to form the lower half 301 of the insulating matrix 3, wherein fig. 3 shows a schematic cross-sectional structure of a model formed by executing the step, and a mark 5 in fig. 1 is taken as a cross-sectional line;
s4: after the injected liquid non-foaming insulating epoxy resin is dried and fixed, the center of the upper surface of the dried liquid non-foaming insulating epoxy resin is taken as a sphere center, a lower hemispherical hole 401 of the air hole 4 is engraved by a 3D engraving machine, the diameter of the lower hemispherical hole 401 is 1mm in the embodiment, fig. 4 shows a schematic cross-sectional structure of a formed model after the step is executed, and a mark 5 in fig. 1 is taken as a cross-sectional line.
S5: the excess waste material is blown out by a blower, and the liquid non-foaming insulating epoxy resin is continuously injected into the inner cavity of the casting mold 1 to form the upper half 302 of the insulating matrix 3, the lower half 301 and the upper half 302 together form the insulating matrix 3, meanwhile, the upper hemispherical hole 402 matched with the lower hemispherical hole 401 is formed by using the surface tension of the liquid non-foaming insulating epoxy resin, and fig. 5 shows a schematic cross-sectional structure of a bubble discharge model finally formed after the step is executed, and the mark 5 in fig. 1 is taken as a cross section line.
The liquid non-foam insulating epoxy resin is continuously injected to the position, which is 1/5 of the height of the inner cavity of the casting mold 1, of the upper surface of the casting mold 1, and stops, the lower end of the first polar plate 201 and the lower end of the second polar plate 202 are clamped between 3 and the inner side wall of the casting mold 1, the lower end of the first polar plate 201 is clamped between the inner side wall of the left end of the casting mold 1 and the insulating substrate 3, and the lower end of the second polar plate 202 is clamped between the inner side wall of the right end of the casting mold 1 and the insulating substrate 3.
The same or similar reference numerals correspond to the same or similar components;
the positional relationships described in the drawings such as "upper", "lower", "left", "right", etc. are merely for the positional description of the present patent and are not to be construed as limiting the present patent; it is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (6)
1. The utility model provides a pouring type bubble discharge model which is characterized in that, including box form pouring mould (1), polar plate (2), fill insulating base member (3) and the bubble hole (4) that set up in pouring mould (1) inner chamber, polar plate (2) include first polar plate (201) and second polar plate (202), the lower extreme clamp of first polar plate (201) is located between the left end inside wall of pouring mould (1) and insulating base member (3), the lower extreme clamp of second polar plate (202) is located between the right-hand member inside wall of pouring mould (1) and insulating base member (3), the interelectrode distance of first polar plate (201) and second polar plate (202) is 9-13mm, bubble hole (4) set up in the inside of insulating base member (3);
the bubble hole (4) is arranged at the center of the insulating substrate (3);
the bubble holes (4) are hollow spheres with the diameter of 1-2mm;
the polar plate (2) is a copper polar plate.
2. The casting bubble discharge model according to claim 1, wherein the first polar plate (201) and the second polar plate (202) are each L-shaped.
3. The casting type bubble discharge model according to claim 1, wherein the insulating substrate (3) is transparent, and the distance between the upper surface of the insulating substrate (3) and the upper surface of the casting mold (1) is 1/5 of the height of the inner cavity of the casting mold (1).
4. Casting bubble discharge model according to claim 1, characterized in that the box-shaped casting mould (1) is made of ABS 3D printing material.
5. A method of manufacturing a cast bubble discharge model, the method being used to manufacture the cast bubble discharge model of any one of claims 1-4, the method comprising the steps of:
s1, printing an ABS insulating material out of a box-shaped casting mold (1) by using a 3D printer;
s2: the lower end of the first polar plate (201) is placed into the inner cavity of the casting mold (1) along the inner side wall of the left end of the casting mold (1), and the lower end of the second polar plate (202) is placed into the inner cavity of the casting mold (1) along the inner side wall of the right end of the casting mold (1);
s3: injecting liquid non-foam insulating epoxy resin into the inner cavity of the casting mold (1), and stopping injection when the liquid non-foam insulating epoxy resin is injected into 1/2 of the vertical height of the inner cavity of the casting mold (1) to form the lower half part (301) of the insulating matrix (3);
s4: after the injected liquid foamless insulating epoxy resin is dried and fixed, carving a lower hemispherical hole (401) of an air hole (4) by using a 3D carving machine by taking the center of the upper surface of the dried liquid foamless insulating epoxy resin as a spherical center;
s5: the excess waste material caused by carving is blown out by a blower, liquid foamless insulating epoxy resin is continuously injected into the inner cavity of the casting mold (1) to form the upper half part (302) of the insulating matrix (3), the lower half part (301) and the upper half part (302) jointly form the insulating matrix (3), and meanwhile, the upper hemispherical hole (402) matched with the lower hemispherical hole (401) is formed by utilizing the surface tension of the liquid foamless insulating epoxy resin.
6. The method for manufacturing a casting type bubble discharge model according to claim 5, wherein the diameter of the lower hemispherical hole (401) in the step S4 is 1mm; and (5) continuously injecting the liquid foamless insulating epoxy resin to the position, which is 1/5 of the height of the inner cavity of the casting mold (1), of the upper surface of the casting mold (1), and stopping, wherein the lower ends of the first polar plate (201) and the second polar plate (202) are respectively clamped between the insulating substrate (3) and the inner side wall of the casting mold (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935558.1A CN110542843B (en) | 2019-09-29 | 2019-09-29 | Casting type bubble discharge model and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935558.1A CN110542843B (en) | 2019-09-29 | 2019-09-29 | Casting type bubble discharge model and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110542843A CN110542843A (en) | 2019-12-06 |
| CN110542843B true CN110542843B (en) | 2024-01-23 |
Family
ID=68715067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910935558.1A Active CN110542843B (en) | 2019-09-29 | 2019-09-29 | Casting type bubble discharge model and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110542843B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135085A (en) * | 2013-02-07 | 2013-06-05 | 广东电网公司电力科学研究院 | High-repeatability standard bubble discharge model device |
| CN203224594U (en) * | 2013-04-11 | 2013-10-02 | 国家电网公司 | Manufacturing mold for needle plate discharge sample |
| CN203224529U (en) * | 2013-04-11 | 2013-10-02 | 国家电网公司 | Insulating pedestal used for electrical test |
| CN104292767A (en) * | 2014-01-13 | 2015-01-21 | 国家电网公司 | Vacuum casting mold material used for electrical insulation parts, and preparation method of mold |
| CN206515427U (en) * | 2016-12-16 | 2017-09-22 | 河北省机电一体化中试基地 | One kind is used to simulate high voltage polymorphic type partial discharge model device |
| CN109471055A (en) * | 2018-11-19 | 2019-03-15 | 保定华创电气有限公司 | A kind of local discharge test bubble-discharge model and its processing method |
| CN208752167U (en) * | 2018-08-23 | 2019-04-16 | 中国长江电力股份有限公司 | A kind of insulation defect shelf depreciation simulator |
| CN211014523U (en) * | 2019-09-29 | 2020-07-14 | 广东电网有限责任公司 | Pouring type bubble discharge model |
-
2019
- 2019-09-29 CN CN201910935558.1A patent/CN110542843B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135085A (en) * | 2013-02-07 | 2013-06-05 | 广东电网公司电力科学研究院 | High-repeatability standard bubble discharge model device |
| CN203224594U (en) * | 2013-04-11 | 2013-10-02 | 国家电网公司 | Manufacturing mold for needle plate discharge sample |
| CN203224529U (en) * | 2013-04-11 | 2013-10-02 | 国家电网公司 | Insulating pedestal used for electrical test |
| CN104292767A (en) * | 2014-01-13 | 2015-01-21 | 国家电网公司 | Vacuum casting mold material used for electrical insulation parts, and preparation method of mold |
| CN206515427U (en) * | 2016-12-16 | 2017-09-22 | 河北省机电一体化中试基地 | One kind is used to simulate high voltage polymorphic type partial discharge model device |
| CN208752167U (en) * | 2018-08-23 | 2019-04-16 | 中国长江电力股份有限公司 | A kind of insulation defect shelf depreciation simulator |
| CN109471055A (en) * | 2018-11-19 | 2019-03-15 | 保定华创电气有限公司 | A kind of local discharge test bubble-discharge model and its processing method |
| CN211014523U (en) * | 2019-09-29 | 2020-07-14 | 广东电网有限责任公司 | Pouring type bubble discharge model |
Non-Patent Citations (1)
| Title |
|---|
| 含气泡缺陷环氧浇注绝缘管型母线电击穿机理研究;任想 等;高压电器;第55卷(第04期);第141-148页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110542843A (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR910006733A (en) | Electrical inspection apparatus using an anisotropic conductive sheet and manufacturing method of an anisotropic conductive sheet | |
| KR830005720A (en) | Manufacturing method of main circuit board | |
| CN110542843B (en) | Casting type bubble discharge model and manufacturing method thereof | |
| CN107976352A (en) | A kind of production method for simulating the transparent tunnel model containing complicated Fracture Networks | |
| CN211014523U (en) | Pouring type bubble discharge model | |
| CN105619713B (en) | Liquid-state silicon gel Inset ejection molding mold | |
| CN205763635U (en) | A kind of hollow bolt clearance type core core box exhaust structure | |
| CN101758946A (en) | PET bottle clamping patter and/or text and processing technology thereof | |
| CN106455331A (en) | Burr preventive forming method for splayed holes of PCB (printed circuit boards) | |
| CN203198125U (en) | Circuit board mold | |
| CN209673266U (en) | High molecular polymer based resistance type mechanics sensor | |
| CN112770497A (en) | Resin hole plugging method of circuit board and circuit board | |
| CN203460393U (en) | High-gloss injection forming mold | |
| CN102485491A (en) | Up-and-down covering type typing stamp holder | |
| CN205232586U (en) | Novel prevent welding double -sided printing tool | |
| CN203592622U (en) | Ball support molding device for hail impact test | |
| CN201745118U (en) | Die core and injection die | |
| CN206416292U (en) | A kind of ceramic body casting mold | |
| CN103302944A (en) | Laminating system and laminating method thereof | |
| CN206323664U (en) | A kind of compression bonding apparatus of the highly dense connector of welding-free type | |
| CN206967845U (en) | A kind of rotary part with fan blade rotor and the mould for making the part | |
| CN201931044U (en) | Model number printing plate for tin bar pouring die | |
| CN101704067A (en) | Method for solving defect on preparing dry type cylinder body water channel by using lost mould technology | |
| CN205272471U (en) | Automatic mould device that opens of foaming | |
| CN204711092U (en) | A kind of cold-box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |